Home / 7,647.90-11,462.60-3,482.21

Finding the Fourth Proportional to 7,647.90, 11,462.60 and 3,482.21

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Solution

The fourth proportional to 7,647.90, 11,462.60 and 3,482.21 is: 5,219.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,647.90 : 11,462.60 = 3,482.21 : x
  2. Step 2: Convert to fraction form
    7,647.90/11,462.60 = 3,482.21/x
  3. Step 3: Cross multiply
    7,647.90x = 11,462.60 × 3,482.21
  4. Step 4: Simplify right side
    7,647.90x = 39,915,105.62
  5. Step 5: Solve for x
    x = 39,915,105.62/7,647.90
  6. Step 6: Final answer
    x = 5,219.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.